new dom operating cover - amity technology · 2017. 7. 27. · safety when operating the harvester...

OPERATING

MANUAL

HARVESTER

2800 7TH Avenue North Fargo, ND 58102

Phone: (701) 232-4199

Fax: (701) 234-1716 www.amitytech.com

MOHE59

MOHE59

CONTENTS

INTRODUCTION………………………………………i OPERATING THE HARVESTER…………………. 8-1Manufacturer's Guarantee Policy…………………. ii Raise Boom…………………………………………. 8-1

Start Up……………………………………………… 8-2SAFETY……………………………………………… 1-1 Shut Down…………………………………………… 8-3

Break In……………………………………………… 8-3SAFETY DECALS………………………………….. 2-1 Lifter Struts………………………………………….. 8-3

Digging Depth……………………………………….. 8-4RECOMMENDED TRACTOR SPECIFICATIONS 3-1 Pinch Point Spacing……………………………….. 8-4Minimum Tractor Horsepower……………………… 3-1 Pinch Point Position……………………………….. 8-5PTO Output……………………………………………3-1 Paddles……………………………………………….8-6Drawbar Weight Capacity……………………………3-1 Apron Chain…………………………………………. 8-7Hydraulic Capacity Options…………………………3-2 Grabroll Bed…………………………………………. 8-8Traction………………………………………………. 3-2 Field Cleaning………………………………………..8-9

Scrub Chain…………………………………………. 8-9PREPARING THE TRACTOR…………………….. 4-1 Scrub Chain Tension…………………………………8-10Adjusting the Drawbar……………………………..…4-1 Leveling Adjustments………………………………. 8-10Tire Spacing and Inflation……………………………4-1 Row Finder……………………………………………8-11Three Point Hitch Position………………………..…4-2 Wheel Fillers………………………………………… 8-11Shaft Monitor/Control Box Location……………..…4-2Attaching the Control Box………………………….. 4-3 LUBRICATION AND MAINTENANCE…………... 9-1Alternate Wiring……………………………………... 4-3 Greasing………………………………………….……9-1PTO RPM Setting…………………………………… 4-4 U-Joints…………………………………………...……9-2

Hydraulic Tank Oil Level………………………..……9-2PREPARING THE HARVESTER………………….. 5-1 Lifter Strut Hubs…………………………………..… 9-3Lifter Strut Spacing………………………………..…5-1 Roller Chain……………………………………...……9-4Rear Strut Adjustment…………………………..…..5-1 Drive Belt………………………………………..…… 9-4Lug Nut Torque…………………………………..….. 5-1 Gearbox Oil Level………………………………...… 9-5Hydraulic Tank Oil Level………………………….... 5-2 Slip Clutch Maintenance………………………….…9-5Connecting Actuator………………………………... 5-2 Breather Cleaning………………………………...… 9-6Secure Shields……………………………………..…5-3 Slip Clutches……………………………………..…. 9-6Hydraulic Valves…………………………………….. 5-3 Hook Rod Chain…………………………………….…9-7Gearbox Oil Level…………………………………..…5-4 Servicing Intervals………………………………...… 9-8

Lubrication Diagram……………………………...… 9-9ATTACHING AND DETACHING………………..….6-1 Lubrication Chart……………………………..…..… 9-10Attaching Hydraulic and Electrical Systems…..… 6-1 Lubrication Diagram…………………………..………9-11Attaching Harvester to Drawbar…………………..…6-1 PTO Driveline Servicing……………………..………9-12Attaching PTO Driveline…………………………..…6-2

CLEANING……………………………..…………… 10-1TRANSPORTING…………………………………....7-1 Lifter Struts………………………………….…………10-1Warning Lights……………………………………… 7-1 Grabrolls…………………………………….…………10-1Prepare for Transport………………………………. 7-1 Apron Shafts……………………………..…..………10-2Turning Radius……………………………………… 7-2 Rowfinder…………………………………….…………10-2Operating Speed………………………………..…… 7-2 Rear Scrub………………………………..………….10-3

Beet Tank…………………………………..…………10-3

MOHE59

Contents

STORAGE………………………………………..…. 11-1 APPENDICES…………………………………15-1End of Season Storage………………………..……11-1 Conversions……………………………………15-1Beginning of Season Storage…………………..…. 11-2 Hydraulic Flow Rates…………………………15-1

Trantorque Installation Procedures………… 15-2ADJUSTMENTS………………………………..……12-1 Scrub Driveline Assembly……………………15-3Grabroll Drive Chain……………………………..…. 12-1 Belted Chain Splice Procedure………………15-4Grabroll Bed Angle………………………………..…12-2 Tools……………………………………………15-5Smooth Grabroll Height Adjustment…………....…12-3 Tapered Hub/Sprocket Installation……………15-6Grabroll Spacing Adjustment………………..……. 12-4 Torque Wrench Effective Length………………15-7Grabroll Speed Adjustment…………………..…….12-5 Easy Lock Assembly and Removal…………15-8Rock Trip Spring Adjustment………………….……12-6Roller Chain Tension or Replacement………...……12-6Roller Chain Tension Specifications…………...….12-7Drive Belt………………………………………..…… 12-8Apron and Paddle Drive Chain………………...……12-9Rear Scrub Drive Chain………………………...……12-10Apron Chain……………………………………..……12-11,12Paddle Shaft Position……………………………….12-13,14Pinch Point Position…………………………………12-15Pinch Point Spacing……………………………….. 12-15Torque Chart……………………………………...……12-16Head Shaft Sprocket Dimensions………………… 12-17Slip Clutches……………………………………….…12-18Wheel Fillers………………………………………… 12-19Row Finder Adjustments…………………………... 12-20Scrapers………………………………………...……12-21Rear Scrub Rollers……………………………………12-22Paddle Adjustment……………………………….… 12-23Reverse Grabroll #4………………………………… 12-24Reverse Grabroll (Wide Frame Machine)…...…… 12-25

TROUBLESHOOTING…………………………….. 13-1Beet Loss and Damage Difficulties………………. 13-1Grabrolls Clogging with Beets and Debris………. 13-2Lifter Wheel Difficulties……………………………. 13-2Soil Difficulties……………………………………… 13-3,4

SPECIFICATIONS…………………………………. 14-1Mechanical/Harvester………………………………. 14-1Serial Number Location……………………………. 14-1

MOHE59

INTRODUCTION

READ THIS MANUAL carefully to learn how to operate and service your machine correctly. Failure to do so could result in personal injury or equipment damage. THIS MANUAL SHOULD BE CONSIDERED a permanent part of your machine and should remain with the machine when you sell it. MEASUREMENTS in this manual are given in both metric and customary U.S. unit equivalents. Use only correct replacement parts and fasteners. Metric and inch fasteners may require a specific metric or inch wrench. RIGHT AND LEFT-HAND sides are determined by facing in the direction the implement will travel when going forward. WRITE SERIAL NUMBER in the Specifications section. Accurately record all the numbers to help in tracing the machine should it be stolen. Your dealer also needs these numbers for all warranty claims, and when you order parts. File the identification numbers in a secure place off the machine. WARRANTY is provided as a part of Amity’s support program for customers who operate and maintain their equipment as described in this manual. The warranty is explained on the warranty certificate which you should have received from your dealer. This warranty provides you the assurance that Amity will back its products where defects appear within the warranty period.

i MOHE59

Introduction

MANUFACTURER’S GUARANTEE POLICY

Amity Technology warrants to its authorized dealer or distributor each new and unused machine, when properly assembled, adjusted, and operated, to be free of defects in material and workmanship, in normal use and properly serviced for a period of twelve (12) months after date of delivery by the dealer to the original retail purchaser.

Amity Technology shall repair or, at its option, replace f.o.b. its designated location, any part or parts of such new and unused machine which shall have been reported in writing to Amity Technology within forty-five days from date of failure thereof and which Amity Technology’s inspection shall disclose to have been thus defective.

This warranty is void if any part not supplied by Amity Technology is used in assembly or repair, or if the machine has been altered, abused, or neglected. Amity Technology makes no warranty whatever as to motors, tires, and other trade accessories in as much as such items are warranted by the manufacturer thereof. This warranty is exclusive and in lieu of all other warranties, whether expressed, implied, or statutory (including warranties of merchantability and fitness for purpose) and Amity Technology shall not be liable for special or consequential damages of any kind on account of any Amity Technology product.

Amity Technology recommends that if ownership of this machine is transferred, this manual should accompany the machine.

ii MOHE59

SAFETY

SAFETY YOU are responsible for the SAFE operation and maintenance of your Amity beet harvester. You and anyone else, who will operate, maintain, or work around the harvester should be familiar with the operating and maintenance procedures and SAFETY information in this manual. These safety practices protect you and the people around you. Make them a working part of your safety program. Harvester owners must give operating instructions to operators or employees before allowing them to operate the harvester at least annually thereafter per OSHA regulation 1928.57. The most important safety device on this equipment is a SAFE operator. It is the operator’s responsibility to read and follow ALL Safety and Operating instructions in the manual. All accidents can be avoided. A person who has not read and understood all operating and safety instructions is not qualified to operate the machine. An untrained operator exposes himself and bystanders to possible serious injury or death. Do not modify the equipment in any way. Unauthorized modification may impair the function and/or safety and could alter the life of equipment. Think SAFETY! Work SAFELY!

RECOGNIZE SAFETY INFORMATION This is the safety-alert symbol. When you see this symbol on your machine or in this manual, be alert to the potential for personal injury. Follow recommended precautions and safe operating practices.

1-1 MOHE59

Safety

UNDERSTAND SIGNAL WORDS A signal word-DANGER, WARNING, or CAUTION- is used with the safety-alert symbol. DANGER identifies the most serious hazards. DANGER or WARNING safety signs are located near specific hazards. General precautions are listed on CAUTION safety signs. CAUTION also calls attention to safety messages in this manual.

GENERAL SAFETY

1. Read and understand the Operator’s Manual and all safety signs before operating, maintaining, or adjusting the harvester.

2. Install and properly secure all shields and guards before operating.

3. Have a first-aid kit available and know how to use it.

4. Have a fire extinguisher available for use and know how to use it.

5. Clear the area of people and remove foreign objects from the machine before starting and

operating.

6. Shift to park, disengage PTO, lower machine to ground, relieve hydraulic pressure, stop engine, remove ignition key, and wait for all moving parts to stop before servicing, adjusting, repairing or disconnecting.

7. Review safety related items with all operators annually.

8. Wear suitable ear protection for prolonged exposure to excessive noise.

1-2 MOHE59

Safety

MAINTENANCE AND OPERATING SAFETY

1. Read and understand all information contained in the Operator’s Manual regarding maintenance, adjustment, and operation of the harvester.

2. Shift to park, disengage PTO, lower

machine to ground, relieve hydraulic pressure, stop engine, remove ignition key, and wait for all moving parts to stop before servicing, adjusting, repairing, or disconnecting.

3. Keep hands, feet, clothing, and hair away

from all moving and/or rotating parts.

4. Ensure that all tractor controls are in neutral before starting.

5. Never wear ill-fitting, baggy, or frayed

clothing when working on or around the harvester.

6. Make sure that all guards and shields are

properly installed and secured before operating the harvester.

7. Clear the area of all bystanders, especially

children, when carrying out any maintenance or making adjustments on the systems or components.

8. Place stands or blocks under the frame

before working beneath the machine.

9. Do not allow riders on the harvester or tractor during field operation or transport.

10. Never operate the harvester inside a closed

building.

11. Stay away from overhead obstructions and power lines during set up and operation. Electrocution can occur without direct contact.

1-3 MOHE59

Safety

HYDRAULIC SAFETY:

1. Always place all tractor hydraulic controls in neutral before dismounting.

2. Make sure that all components in the

hydraulic system are kept in good condition and are clean and tight.

3. Replace any worn, cut, abraded, flattened

or crimped hoses and metal lines.

4. Do not attempt any makeshift repairs to the hydraulic lines, fittings, or hoses by using tape, clamps, or cements. The hydraulic system operates under extremely high-pressure. Such repairs may fail suddenly, creating a hazardous and unsafe condition.

5. Wear proper hand and eye protection when

searching for a high-pressure hydraulic leak. Use a piece of wood or cardboard as a backstop instead of hands to isolate and identify a leak.

6. If injured by a concentrated high pressure

stream of hydraulic fluid, seek medical attention immediately. Serious infection or toxic reaction can develop from hydraulic fluid piercing the skin surface.

7. Before applying pressure to the system,

make sure all components are tight and that lines, hoses and couplings are not damaged.

8. On self-contained hydraulic systems, make

sure that shut off valves are in open position before engaging PTO.

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Safety

TRANSPORT SAFETY

1. Read and understand ALL information in the Operator’s Manual regarding procedures and SAFETY when operating the harvester in the field, or on the road.

2. Make sure the SMV (Slow Moving Vehicle) emblem and required lights and reflectors are

in place, are clean, and can be seen clearly by all overtaking and oncoming traffic.

3. Do not allow riders on any part of the harvester during either field operation or travel.

4. Attach to the tractor using only a drawbar pin with provisions for a mechanical retainer.

5. Always attach a safety chain.

6. Always use hazard warning flashers when transporting unless prohibited by law.

7. Always lower elevator boom when transporting harvester.

8. Stay away from overhead obstructions such as power lines.

9. Maximum transport speed on smooth roads is 15 mph (24 kmh).

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SAFETY DECALS

SAFETY DECALS The types of decals on the equipment are shown in the illustration below. Good safety requires that you familiarize yourself with the various safety decals, the type of warning, and the area, or particular function related to that area, that requires your SAFETY AWARENESS. Think SAFETY work SAFELY

52334

64617

52339

52248

64429

53740

53741

59614

52341

2-1 MOHE59

Safety Decals

REMEMBER: If safety decals have been damaged, removed, become illegible, or parts are replaced without decals, new decals must be applied. New decals are available from your authorized dealer.

53747

53746

52338

64428

64616

52329

62964

2-2 MOHE59

RECOMMENDED TRACTOR SPECIFICATIONS

MINIMUM TRACTOR HORSEPOWER: Minimum horsepower requirements are as follows:

Horsepower 200 horsepower/ 149.1 kw 170 horsepower/ 127 kw Harvester Model 8 row 22 in. spacing 6 row 45 cm spacing

6 row 30 in. spacing 6 row 22 in. spacing 6 row 24 in. spacing 4 row 30 in. spacing

PTO OUTPUT: 1000 RPM is required with one of the following shaft options: 38mm-8 Spline 1-3/4in-20 Spline 1-3/8in-21 Spline

DRAWBAR WEIGHT CAPACITY: Drawbar must be able to support a vertical load of 8500 lbs (3600 kg) (A).

A

3-1 MOHE59

Recommended Tractor Specifications

HYDRAULIC CAPACITY REQUIREMENTS: 2700 PSI @ 30 GPM (18.6 Mpa @ 113.6 l/m) with 4 hydraulic remotes (A).

A

TRACTION: Front wheel assist (or 4 wheel drive) is recommended when pulling a harvester. Front weights may also be necessary to provide balance, traction and steering control.

Weights

3-2 MOHE59

PREPARING THE TRACTOR

ADJUSTING THE DRAWBAR: The tractor drawbar must be set within the given range to maintain the integrity of the drive system. IMPORTANT: Ensure driveline remains within operating range under all conditions.

MAX 73.75 IN.MIN 58.63 IN.

9.125-12.563 IN.

15.875 - 19.813 IN.

TIRE SPACING AND INFLATION: Tires should be inflated to the manufacturer’s specification. A = 4 * B B = Row Spacing C = Tire Width, must be as narrow as possible. IMPORTANT: Tires must be narrow enough not to contact beets when driving down rows, while still providing enough traction to pull harvester. NOTE: Front tires must be aligned with rear tires.

4-1 MOHE59

Preparing the Tractor

CAUTION: Ensure receiver and drawbar support arms clear PTO driveline under all conditions.

THREE-POINT HITCH POSITION: Three-Point Hitch not connected to hitch Must be fully raised or removed.

CONTROL BOX LOCATION: Control box must be correctly wired and securely fastened within the cab. Correct Wiring: White or Red wire - 12V Positive Black wire - 12V Negative

4-2 MOHE59


ATTACHING THE CONTROL BOX: The preferred method for attaching the control box to the tractor is to use a 12V switched source, as shown.

+ WHITE WIRE

- BLACK WIRE

GROUND

12V DC SWITCHED SOURCE(15A MINIMUM)

CONTROL

ALTERNATE WIRING: When a 12V switched source is not available, an alternate way to attach the control box is shown. NOTE: This is not the preferred method of attachment; a 12V switched source should be used in place of this method if at all possible. CAUTION: When connected in this manner, the control must be disconnected when not in use.

TO TRACTOR24V POWER

12V POWER

IMPORTANT:DO NOT CONNECT TO THIS TERMINAL.24V DC CURRENT WILL BE SUPPLIED AND IMMEDIATE DAMAGE TO THE CONTROL, HARNESS, AND COILS WILL OCCUR.

4-3 MOHE59


PTO RPM SETTING: Tractors equipped with 2 speed PTO’s must be set to 1000 rpm.

4-4 MOHE59

PREPARING THE HARVESTER

LIFTER STRUT SPACING: Verify spacing matches spacing of planted crop. A=B/2 Center of frame to center of strut B=Row spacing C=Space appropriate for size of beets (This space is the pinch point) NOTE: Refer to Operating the Harvester section for pinch point spacing guidelines.

BCA

REAR STRUT ADJUSTMENT: Tires should be inflated to the manufacturer’s specification. A=Row spacing B=A*(Total number of rows-1) Example: B=A*5 (For a 6 row machine)

AB

LUG NUT TORQUE: Lug nuts should be torqued to: 180 ft-lbs or 245 N•m NOTE: Re-torque after first 10 hours of operation and check yearly after that.

5-1

Preparing the Harvester

HYDRAULIC TANK OIL LEVEL: Refer to Lubrication and Maintenance for service schedule and oil type. “Full Cold Line” on decal should be at dimension shown.

26-27” (66-69cm)

CONNECTING ACTUATOR: After wiring control box to tractor, the harness on the harvester must be wired to the actuator switch, as shown.

White Wire

Black Wire attached to “B” side of connector

5-2


SECURE SHIELDS: Before starting, be sure to secure shields in operating position.

OPEN VALVES ON HYDRAULIC TANK: CAUTION: Valves (1,2) must be open prior to engaging PTO, or system failure may occur.

1

2

NOTE: VALVES SHOWN IN CLOSED POSITION

5-3


GEARBOX OIL LEVEL: Check all gearbox oil levels. Refer to Lubrication and Maintenance for oil type and fill level information.

GREASE WHERE NEEDED: Refer to Lubrication and Maintenance for grease type and frequency requirements. IMPORTANT: Use only hand held grease guns. Air-powered grease guns can damage your seals. Over greasing may also damage bearing seals. In such a case, replace damaged seals immediately.

5-4

ATTACHING AND DETACHING

ATTACHING HYDRAULIC AND ELECTRICAL SYSTEMS: Harvesters are available with ISO couplers or metric adapters. If the hydraulic attachments on your harvester do not fit the tractor, contact your Amity dealer. CAUTION: To avoid injury from escaping fluid under pressure, relieve the pressure in the system before disconnecting or connecting hydraulic or other lines. Tighten all connections before applying pressure.

1. Connect hydraulic lines to tractor as shown.

2. Connect harvester warning light harness to tractor. Make sure harvester warning lights operate with tractor warning lights and turn signals.

3. Connect control monitor or switchbox to harness routed into tractor cab.

.

ATTACHING HARVESTER TO TRACTOR DRAWBAR:

1. Adjust tractor drawbar (see Preparing the Tractor section)

2. Remove tractor hitch pin. 3. Install required bushings into pull plate. 4. Adjust hitch height. 5. Shift to park, shut off engine, and

remove ignition key before getting out of tractor.

6. Line up pull plate with drawbar. 7. Place hardened washer A between

drawbar and pull plate, and install shims as necessary B.

5. Reinstall hitch pin. 6. Connect safety chain to drawbar

supporting structure.

A

B

6-1 MOHE59

Attaching and Detaching

CONNECT PTO DRIVELINE: CAUTION: To avoid bodily injury or death, shut off tractor and lower machine to ground before attaching PTO driveline. NOTE: Always operate harvester using 1000 rpm PTO. IMPORTANT: Keep driveline and powershaft splines clean of dirt, paint, and debris.

1. Shift to park, disengage PTO lever, lower machine to ground, relieve hydraulic pressure, stop engine, and remove ignition key.

2. Raise tractor PTO shield. 3. Pull back on PTO collar until it

latches. 4. Align splines between harvester

driveline and tractor PTO shaft. Push driveline onto shaft until collar snaps forward on yoke.

5. To ensure PTO is secure, pull back on shield. Do not pull on collar as this will release latch.

6. Lower tractor PTO shield.

6-2 MOHE59

TRANSPORTING

WARNING LIGHTS: CAUTION: Prevent collisions between other road users, slow moving tractors with attachments or towed equipment, and self propelled machines on public roads. Frequently check for traffic from the rear, especially in turns, and use turn signal lights or hand signals. Use headlights, flashing warning lights, and turn signals day and night. Follow local regulations for equipment and marking. Keep lighting and marking visible and in good working order. Replace or repair lighting and marking that has been damaged or lost.

PREPARE FOR TRANSPORT:

1. Run machine until it is clear of beets & tank is empty.

2. Clean all soil and debris off machine. 3. Lower boom. 4. Raise machine out of ground. 5. Make sure all safety decals and lights are

clean and visible, and that tail lights and turn signals function properly.

CAUTION: Always use warning lights when transporting. Braking distance is greatly increased when towing a harvester. NOTE: Maximum speed when transporting the harvester is 15 mph (24 kmh).

CLEAN HARVESTER: The harvester should be thoroughly cleaned each time it leaves the field.

7-1 MOHE59

TRANSPORTING

TURNING RADIUS: Turning at the end of the field while pulling the harvester requires a wide area. A good way to accommodate this is to plant headland rows. A minimum of 60 headland rows are recommended on each end of the field. IMPORTANT: Failure to provide a sufficient turning radius for the tractor and harvester may lead to damage to the rowfinder assembly and/or tractor tires.

OPERATING SPEED: The harvester should be operated at speeds specific to the conditions; typical speeds are 3-5 mph (4.8-8 kmh) Changing speed may affect the function of the machine, therefore creating the need for other operating adjustments (refer to Troubleshooting if problems occur).

7-2 MOHE59

OPERATING THE HARVESTER

RAISE BOOM: Once in the field, these steps should be followed before lifting beets:

1. Raise boom. 2. Set boom to desired

height by moving locking pins (A) to one of the 3 holes on support struts.

3. Lower boom onto pins to relieve pressure on hydraulic cylinders.

4. Move selector switch (B) to elevator position.

A

B

8-1 MOHE59

Operating the Harvester

Start Up:

1. Ensure that yourself, bystanders, and all objects are clear of harvester before starting.

2. Check PTO lever to ensure it is not

engaged. 3. Make sure the grabroll bed is clear of

beets. 4. Start the tractor, throttle down to idle. 5. Engage PTO. 6. Throttle up to 1000 PTO rpm and ensure

boom is raised before lifting any beets.

CAUTION: PTO must be turning at 1000 RPM if any beets are present on the grabroll bed, or if the harvester is lifting beets. If the tractor’s PTO is turning at any less than 1000 RPM when beets are present, imminent damage will ensue.

8-2 MOHE59


MACHINE SHUT DOWN: To ensure maximum life of the machine, follow this procedure when stopping.

1. Raise harvester out of ground with PTO still engaged. 2. Continue running PTO at 1000 RPM until grabroll bed is empty, and harvester is

completely clear of beets. 3. Once there are no beets left in harvester, throttle tractor down to idle, and disengage the

PTO. CAUTION: When shutting down or reducing ground speed, the PTO must remain turning at 1000 RPM until the harvester is completely clear of beets. Failure to allow necessary time for machine to cycle through beets will result in imminent damage to drivebelt, and/or other components.

BREAK-IN: - After the initial 5 hours of normal field operation, check all fasteners, lug nuts, apron chain tension, rollers, and lifter struts (refer to Adjustments section if adjustments are required). - After checking these items, do a general check over all major systems and components before continuing.

LIFTER STRUTS: Harvesters come equipped with either steel spacer tubes that hold the lifter strut securely in position for lifting in normal soil conditions, or an optional rubber bumper for use in rocky conditions. The rubber bumper compresses when the wheels strike a large rock and allow the assembly to move upward, minimizing wheel damage.

8-3 MOHE59


DIGGING DEPTH: Digging depth will vary with soil and crop conditions. 3 in. (7.62 cm) is a good bench mark. Actual digging depth is best determined by checking the depth in several areas after harvesting 100 ft. (30 meters) IMPORTANT: Though 3 in. (7.62 cm) is a good starting depth, the shallowest possible depth that the lifters will still lift the entire beet should be used. Digging shallower will also extend the life of the machine.

3.000" (7.62 CM)DIGGING DEPTH

PINCH POINT SPACING:

- Pinch point spacing (A) should be adjusted to allow for the shallowest possible digging depth.

- Pinch point adjustments are done by

adding or removing spacers (B). See parts manual for part #.

- Once again, the pinch point should be

adjusted so that the entire beet is lifted, with the least amount of soil possible.

IMPORTANT: As a general rule, the pinch point spacing (A) should be:

Pinch Point Spacing

Tons/Acre

1 ½ -1 ¾” 18 – 22 1 ¾ - 1 7/8” 22 – 26 1 7/8 – 2” 26 – 30

A

B

8-4 MOHE59


Pinch Point Position:

• Pinch point position can be adjusted by the top spacer (A) on the lifter strut. See parts manual for part #.

• In muddy conditions the pinch point

should be rolled forward by adding strut spacers.

• In dry soil conditions, if beet tails are

being broken off, the pinch point should be rolled back by removing lifter strut spacers.

NOTE: The directional adjustments should be taken in relation to the driver’s seat of the tractor, that is, back is away from the driver, and forward is toward the driver.

PINCHPOINT

LOCATION

A

GROUND LEVEL

BACK

FORWARD

8-5 MOHE59


Paddles: -Paddles are designed to transfer beets from the lifter wheels onto the apron chain. -Paddles can be adjusted vertically up and down, or horizontally toward or away from the lifter wheels. -They should be adjusted down into the lifter wheels only far enough to move the beets onto the chain. NOTE: Paddle adjustment may change when pinch point position is changed. CAUTION: When harvester is equipped with rock struts, the paddle shaft should be 4 ¾” (12 cm) above highest point of the lifter wheels (A). IMPORTANT: Always operate harvester at 1000 RPM to maintain cleaning action of paddles. When in sticky, muddy conditions, adjust the paddles out until the rubber paddles just touch the insides of the lifter wheels. When conditions are drier, paddles can be moved inward.

A

8-6 MOHE59


APRON CHAIN: The apron consists of several parallel sets of hook rod chains. The apron provides the first system to remove dirt, clods, and debris from the beets. Tension of this chain should not be excessively tight, however the chain should never drag on the ground or droop enough on the top allowing beets to be lost out the sides of the machine. Running it at a slightly slack tension will allow the chain to move while turning, allowing dirt, clods and debris to come off the beets and drop away (see “Apron Chain” in Adjustments for proper chain tension).

8-7 MOHE59


GRABROLL BED: The grabroll bed provides the majority of the cleaning action within the harvester. Grabrolls with scrolling provide an aggressive push to beets. Beets are continually turned and flipped over so that the entire beet is cleaned. Scrolled grabrolls will also thoroughly remove mud and break up dirt clods. The smooth grabrolls turn slightly faster than the scrolled, and provide a wedging action to remove dirt, tailings, and debris. The scrolled grabrolls each move the beets to the center and to the rear of the machine. Kickers, welded to the scrolled rolls, kick the beets to keep them moving on the grabroll bed. The beets can take full advantage of 35 sq. ft. (3.25 sq. m) for a 6 row harvester or 45 sq. ft.(4.18 sq. m.) for an 8 row cleaning potential. The grabrolls move beets to the center and to the rear to discharge them into the scrub. The spacing can be adjusted wider or narrower as conditions permit. The smooth grabrolls are spring mounted to allow relief for rocks as they pass over the rolls. The bed has several adjustments to optimize cleaning and minimize beet damage. The bed can be angled up or down, to increase or decrease cleaning time. The smooth rolls can be adjusted vertically to change the amount of time the beets remain on the bed. They can also be adjusted forward and backward to increase or decrease the amount of mud being taken off during cleaning. NOTE: Grabroll tubes turn at 550 RPM from the factory. A larger drive sheave is available to speed the rolls to 600 RPM if mud collects on grabrolls in muddy conditions. A smaller drive sheave is available to slow down the grabrolls to 500RPM during dry conditions to reduce crop damage. IMPORTANT: Always operate PTO at 1000 RPM to obtain maximum cleaning action of the grabrolls.

.

8-8 MOHE59


FIELD CLEANING: During operation, the harvester will collect mud at different rates depending on soil conditions. It is important to clean the machine every 2 hours, or more often if the conditions demand it. IMPORTANT: If left uncleaned, mud can eventually clog the machine, and will cause imminent damage to the machine. Frequent cleanings will help to avoid this.

SCRUB CHAIN: The rear vertical chains which lift the beets from the grabrolls up to the tank are also known as a scrub. The inside chain typically runs faster than the outside chain providing additional cleaning. NOTE: The larger the difference in the chain speed, the greater the chance of additional damage to the beets.

8-9 MOHE59


SCRUB CHAIN TENSION: The scrub roller springs (A) should be tightened as shown (B), measuring closed length from the outside of the end hooks. This will ensure that there is constant pressure on the rollers, and subsequently the chains. This tension will help the scrub to empty the last of the beets into the tank, as well as keeping the chains in their proper position on the sprockets and idler rollers. IMPORTANT: Always adjust spring tension with a clean, empty scrub.

A

B Closed Length +1” (2.54 cm)

LEVELING ADJUSTMENTS: To obtain optimal performance of the harvester, the machine must be level from left to right, and front to rear while harvesting. The rear struts can be adjusted vertically to compensate for an unlevel harvester. NOTE: If rear struts are positioned to track in the “dug rows,” either one or both of the rear struts will need to be adjusted to level the machine left to right and front to back. Another reason the harvester might not be level is a result of the weight of the extended boom. Adjusting the rear struts will help solve this problem as well.

8-10 MOHE59


ROW FINDER: Amity harvesters have the option of a hydraulic row finder attachment. Row finders help keep the lifter struts directly in line with the crop rows. The row finder wands (A) should be adjusted so that there is 5” (12.7 cm) of contact between the ground and the row finder wands. IMPORTANT: Raise harvester out of ground when backing up machine. Failure to do so may damage row finder.

5 IN. 12.7 CM

GROUND LEVEL

A

WHEEL FILLERS: Optional wheel fillers can be bolted onto lifter wheels to lift more soil. This helps reduce beet damage in extremely dry conditions and loss of small beets through lifter wheel spokes. IMPORTANT: Wheel fillers should only be used when necessary. Loading excess soil into machine may reduce machine life, and lead to excess wear on components.

8-11 MOHE59

LUBRICATION AND MAINTENANCE

PERFORM LUBRICATION AND MAINTENANCE: Perform each lubrication and service illustrated in this section at the beginning of the season and at the end of the season. IMPORTANT: The period recommended is based on normal conditions; severe or unusual conditions may require more frequent lubrication or oil changes.

GREASE: SAE multipurpose high temperature/extreme pressure grease with less than 1% molybdenum disulfide grease should be used. Clean grease fittings before using grease gun. Replace any lost or broken fittings immediately. If a new fitting fails to take grease, remove and check for failure of adjoining parts.

IMPORTANT: The items separately listed from the lubrication chart, and the servicing intervals pages are of extra importance. These items must be well maintained and checked routinely to maximize their lifespan.

9-1 MOHE59

Lubrication and Maintenance

U JOINTS: IMPORTANT: On needle bearings (A), use of grease with more than 1% molybdenum disulfide content may lead to premature U joint failure.

A

HYDRAULIC TANK OIL LEVEL: Tank should be filled so that 2” (5.08 cm) of oil shows above the low level line. NOTE: Check oil level every 10 hours.

2” (5.08cm)

9-2 MOHE59


LIFTER STRUT HUBS: Lifter strut hubs (A) need to be repacked with grease, seals need to be checked, and spindle nut retorqued every 400 acres, or sooner in severe conditions. Torquing Spindle Nut:

1. Ensure seal and bearings are seated properly before tightening the spindle nut. 2. Torque the spindle nut to 200 lb-ft while continuously rotating hub (A). At this point, the

hub should be difficult to rotate. 3. Loosen spindle nut one full turn, or until it’s loose.

4. Torque spindle nut to 50 lb-ft while continuously rotating lifter wheel hub.

5. Back off spindle nut 1/6 of a turn, or just enough to install cotter pin in the spindle.

A

ROLLER CHAIN: Apply proper amount of oil to roller chain (A) to prevent bearings from becoming dry. IMPORTANT: Excessive oil applied to roller chain may contaminate slip clutch (B).

BA

9-3 MOHE59


DRIVE BELT: Check drive belt for wear every 10 hours.

9-4 MOHE59


GEARBOX OIL LEVEL: Gearbox oil levels should be checked routinely and filled to the line shown at (A). Side plugs (B) can be found on all gearboxes and can be used to measure correct fill level. When gearboxes are filled with the proper amount of oil, the level should be just below the threads of side plug (B). Excess oil can be drained from gearboxes using side plugs (B).

A

B

SLIP CLUTCH MAINTENANCE: Prior to use each year, slip clutches should be tested to ensure they are functioning properly. Testing slip clutch

1. Loosen springs by loosening 6 spring bolts (A).

2. Rotate sprocket (B) 1-2

revolutions to ensure proper fiber pad slippage.

3. Retighten bolts (A) to

original torque.

A

B

9-5 MOHE59


BREATHER CLEANING: The breather must be able to vent to atmospheric conditions during the heating and cooling cycles of operation. If it cannot vent, oil will seep out the seals and run low. Prolonged operation with low oil levels will damage the internal components. To clean breathers, follow this procedure:

1. Remove the breather (A). 2. Stop up the breather opening using a plastic

plug or a clean rag to prevent contaminants from entering the gearbox.

3. Soak the breather in solvent for one hour.

4. Use a pointed instrument or a wire to remove

any residue from the breather passages.

5. Blow out the breather with high pressure air.

6. Blow through the breather to ensure that the passages are clear.

7. Reinstall and tighten breather (A) in the

gearbox.

A

SLIP CLUTCHES: Fiber pads (A) within slip clutches must be replaced once excessive slippage occurs. IMPORTANT: Do not contaminate slip clutch with oil. This may cause slippage, leading to premature fiber disc replacement.

A

9-6 MOHE59


HOOK ROD CHAINS: Hook rod chain, such as apron chain, is a high wear item. Hook rod chains should be replaced when the chain is worn 40% through at joints. 40% wear = approximately .3 in.(.76 cm) remaining in ½ in. chain. NOTE: Sprockets should typically be replaced when replacing chain.

.5 IN.(1.27 CM)

.3 IN.(.76 CM)

WORN AREA

NOTE: By the time apron chain has experienced 40% wear, approximately 10 links will have been removed from each section.

9-7 MOHE59


SERVICING INTERVALS: BEFORE 1ST USE 1. Grease hitch, drivelines, row finder, U joints, and PTO driveline assembly 2. Check all gearbox oil levels. 3. Do not grease ball bearings. 5 HOURS 1. Grease driveline, and all U joints. 10 HOURS 1. Grease row finder, hitch assembly, lifter strut rod (when equipped with rock struts), belt idler

pivot hub, and hitch assembly. 2. Oil all roller chains using a hand held oil can to control the amount and position of oil placement. 3. Check tightness of the following: lug bolts on rims, lifter strut mounting bolts, hubs on sheaves

and sprockets, rear struts mounting bolts, bearing mount on grabrolls, splice bolts on all belted chains, drive sprockets for belted and hook chain.

4. Service apron chain. Check tension, and remove links if necessary. 5. Check belted chain splices. 6. Check for drive belt tension and wear; check idlers for proper tension and alignment.

Adjust as required. 7. Check roller chain tension and wear; check sprockets and idlers for proper tension and

alignment. Adjust as required. 40 HOURS 1. Lubricate all sealed bearings, rear strut and elevator hinge. 2. Lubricate the hydraulic cylinder pivot points. 3. Check oil level in gearboxes. Fill to proper level. Check more often if leaks are noticed. 4. Check wear on elevator plastic slides, idler wheel bearings, and bogey wheel bearings, and

replace as necessary. 250 HOURS OR ANNUALLY 1. Repack rear strut hubs, and lifter wheel hubs. 2. Change hydraulic oil and replace filter. 3. Change oil in gearboxes, rinse gearbox when oil is replaced. 4. Clean gearbox breathers.

9-8 MOHE59


13

265

5 54

4

AB B

7

8

TOP

VIE

W1 2 3 4

56

78

9-9 MOHE59


Ref # Description Lubrication

Type Frequency Quantity

Number of Instances

1 Hitch Assembly Multi-Purpose Grease 10 Hours 1-2 pumps 4 2 Rowfinder Multi-Purpose Grease 10 Hours 1-2 pumps 3

3A Lifter Strut - Rod Multi-Purpose Grease 40 Hours 2-3 pumps 2 (with rock strut) Multi-Purpose Grease 10 Hours 2-3 pumps 2

3B Lifter Strut- Hub Multi-Purpose Grease 40 Hours 1-2 pumps 2

4 Roller Chain SAE 20 (20 to 40°F) 10 Hours As Required

2

SAE 30 (40 to 100°F)

5 Sealed Ball

Bearings Multi-Purpose Grease 40 Hours 1-2 pumps 31

6 Rear Strut Multi-Purpose Grease 40 Hours 1-2 pumps 2

7 Gearbox EP 80W90 Oil 250

Hours/Annually 3 Qt (2.8 L) 2

8 U-Joint Multi-Purpose Grease 10 Hours/Daily 2-3 pumps 5

9 Gearbox-Scrub EP 80W90 Oil 250

Hours/Annually 1.25 Qt (1.18

L) 2

10 Driveline Multi-Purpose Grease 5 Hours 2-3 pumps 6

11 Hydraulic Tank ISO 32 Equivalent

Hydraulic oil 250

Hours/Annually 37 Gal (140

L) 1

12 Oil Filter ZINGA #AE25 250

Hours/Annually 1 filter 1

9-10 MOHE59


119 10 12

104 9 9

12

11

9-11 MOHE59


PTO DRIVELINE SERVICING: The first lube interval should be 16-24 hours of operation after initial start-up, then follow schedule. NOTE: A 1% Molybdenum disulfide grease should be used for the below listed grease points.

Description Frequency Quantity Instances

Cross and bearings* 8 hours 2-3 pump 3 Telescoping members 8 hours 8-10 pumps 1

CV ball and socket* 8 hours 2 pumps 1 CV center housing* 24 hours 2 pumps 1

*Constant angle applications must have a lube interval of 4 hours. NOTE: Replacement parts are not lubricated. They must be lubricated at time of assembly. Use amounts listed above per location, then follow above recommendations.

9-12 MOHE59

CLEANING

CLEANING: Cleaning is an important part of harvester maintenance. This section illustrates a few points where mud will routinely build up which need to be cleaned.

LIFTER STRUTS /PADDLES: This is the area that typically requires the most frequent cleanings. Any mud buildup around the lifter struts and paddles must be periodically removed for optimum performance and machine life. IMPORTANT: If left uncleaned, mud buildup in these areas may lead to paddle shaft failure, slip clutch failure, excessive paddle wear, lifter strut seal damage, and lifter strut bearing failure.

GRABROLLS: Mud buildup on grabrolls can typically be eliminated by proper drive sheave selection. If increasing grabroll RPM does not eliminate mud buildup, the grabrolls will need to be periodically cleaned until conditions improve.

10-1 MOHE59

Cleaning

APRON SHAFTS: Mud must be removed from apron shafts if buildup occurs under or between apron chains.

ROWFINDER: Row finder wands (A) and springs (B) must be cleaned routinely in order for row finder to correctly locate beets. Also clean the area around the hydraulic valve spool and all other moving components to prevent seal failure.

AB

10-2 MOHE59

Cleaning

REAR SCRUB: Interior of inside chain on the rear scrub may build up with mud balls or beets. This area should be checked frequently and emptied if build up occurs. The areas around the bogie wheels and frame cross members must also be kept clean. If left uncleaned, mud balls may cause belted chain to jump off sprockets.

BEET TANK: The elevator and boom structure, bogie wheels, slides and frame members should be cleaned frequently to prevent soil buildup. Excess soil in the beet tank causes undue strain on the elevator’s hydraulic motor.

10-3 MOHE59

STORAGE

END OF SEASON:

1. Thoroughly clean harvester inside and out. Debris and dirt will draw moisture and cause

rust.

2. Inspect harvester for any damaged or worn components, repair or replace as required.

3. Loosen or remove drive belt. This will prolong the life of the belt.

4. Touch up paint on all parts from which paint has been worn to prevent rusting.

5. Clean all chains by washing with diesel fuel. Dry well and relubricate (see Lubrication

and Maintenance section).

6. Lower boom.

7. Move harvester to a level dry and clean area.

8. Put blocking under lifter wheels to prevent sinking and under rear struts to take load off

tires. DO NOT DEFLATE TIRES. If exposed, put cover over tires to protect them from

light, grease, and oil.

9. Following these guidelines will help prevent any unnecessary downtime during next

season’s pre-harvest preparation.

11-1 MOHE59

Storage

BEGINNING OF SEASON:

1. Install tires if they were removed for storage.

2. Attach harvester to tractor (see Attaching and Detaching section).

3. Remove all support blocks from lifter struts and rear struts.

4. Lubricate entire machine (see Lubrication and Maintenance), this will force any collected

moisture out of the bearings. Replace gearbox oil and hydraulic oil (see Lubrication and

Maintenance section).

5. Reinstall drive belt and verify that all pulleys, idlers, and slip clutches are functioning

properly.

6. Run harvester to ensure proper function.

7. Tighten all loose components including all guards and shields

8. Review operator’s manual prior to operation.

IMPORTANT:

All components that are damaged or worn must be repaired or replaced before operating the

harvester (see parts book for part numbers).

11-2 MOHE59

ADJUSTMENTS

ADJUSTMENTS: This section is a reference on how to make the adjustments suggested in Troubleshooting and Lubrication and Maintenance. These fine tunings will help ensure a harvest with minimal losses due to excesses in crop damage and tare.

GRABROLL DRIVE CHAIN: Adjusting Chain Tension

1. Shift to park, disengage PTO, lower machine to ground, relieve hydraulic pressure, stop engine, remove ignition key, and wait for all moving parts to stop before dismounting.

2. Open the right access door and latch it.

3. Loosen the chain idler sprocket (A).

4. Slide sprocket down until chain is at desired tension.

(See “Chain Tension” within this section). 5. Tighten idler sprocket (A).

Replacing Chain

1. Follow steps 1-3 from above. 2. Slide sprocket upward until chain is loose.

3. Remove old chain, and install new chain.

4. Slide idler sprocket down until the chain is at desired tension. (See “Chain Tension”

within this section).

5. Tighten idler sprocket (A).

6. Lubricate chain if necessary (see Lubrication and Maintenance).

7. Close and secure access door before starting machine. NOTE: Use a straight edge across the faces of the sprockets to determine their alignment. If they are not aligned, loosen sprockets, realign, and then retighten sprockets.

A

12-1 MOHE59

Adjustments

GRABROLL BED ANGLE:

1. Shift to park, disengage PTO, lower machine to ground, relieve pressure from hydraulics, stop engine, remove ignition key, and wait for all moving parts to stop before dismounting.

2. Open access door and latch it.

IMPORTANT: Loosen apron/paddle drive chain

3. Loosen nut (D).

4. Adjust eyebolt (E) for the desired bed angle. IMPORTANT: Allow clearance between lifter wheels and apron chain when adjusting bed angle.

5. Tighten nut (D).

6. Re-adjust drive belt and apron/paddle drive chain (See “Chain Tension” and “Drive Belt” within this section for chain and belt tension specs).

7. Close access door and latch it.

NOTE: To level grabroll bed, set C at 17.5 in. (44.5 cm).

A

BC F F

ED

G

H

12-2 MOHE59

Adjustments

SMOOTH GRABROLL HEIGHT ADJUSTMENT:


2. Open the access door and latch it.

3. To adjust smooth grabrolls (H) up or down, adjust using eyebolts (F).

4. Readjust drive belt to proper tension (see to “Drive belt”).

5. Close access door and latch it.

A

BC F F

ED

G

H

12-3 MOHE59

Adjustments

ROLL SPACING ADJUSTMENT:



3. Adjust bolt (G) to change the gap between smooth grabrolls and scrolled grabrolls.

NOTE: To set gap between grabrolls to original factory spacing, adjust bolt (G) so (H) is 2 inches ( 5 cm).

4. Readjust rock trip spring compression (C) to 8.5 in. (21.7 cm). 5. Close and latch access doors before starting machine.

IMPORTANT: Grabrolls must not touch each other under any operating conditions.

CH

G

12-4 MOHE59

Adjustments

GRABROLL SPEED ADJUSTMENT:



3. Remove grabroll bed drive belt according to chart within this section.

4. Remove sheave by first removing sheave bolts.

5. Install sheave bolts in previously unused holes in the taper lock hub. Evenly tighten

bolts until sheave is loose.

6. Remove taper lock hub, key and sheave from shaft.

7. Replace drive sheave to obtain grabroll bed speed desired, refer to figure below.

8. Place sheave on shaft. IMPORTANT: Ensure tapered surfaces are clean and free of all lubricants.

9. Place taper lock hub on shaft, then insert key into shaft and hub.

10. Start bolts through taper lock hub into sheave.

11. Align sheave (A) with other sheaves and tighten evenly. Be sure sheaves are aligned with each other after tightening.

12. Reinstall grabroll bed drive belt according to diagram provided.

13. Close and latch access door before starting machine.

12-5 MOHE59

Adjustments

ROCK TRIP SPRING ADJUSTMENT:



3. Adjust nut (F) so that (C) is 8.5 inches (22 cm)


*Refer to chart on previous page.

ROLLER CHAIN TENSION OR REPLACEMENT: Roller chains need to be tightened when they are worn or when they jump sprocket teeth. Each chain has a certain amount of allowable chain movement. To measure allowable chain movement, hold a tape measurer up to the chain, then pull the chain down and then up. (The total amount of movement the chain moves should fit the specifications listed within this section). Check alignment of the sprockets periodically during the season, and whenever replacing roller chains. Lay a straight edge along a machined surface of the sprockets. If there is any misalignment, adjust the sprocket. For sprockets on a shaft with end float, align the sprocket for the normal operating position. Install the replacement chain around both sprockets, bringing the free ends together on one sprocket. Insert a connector link and secure in place.

ALLOWABLECHAIN

MOVEMENT

12-6 MOHE59

Adjustments

ROLLER CHAIN TENSION SPECIFICATIONS: Roller chains on the harvester are set to allow for designated amounts of chain movement. When servicing or replacing these chains, they should be reset to factory tensions. IMPORTANT: Recheck chain tension after initial 5 hrs. of operation.

Apron/Paddle Shaft Chain Rear Scrub Chain (Gearbox Drive Option)

Grabroll Bed Chain Reduction Chain

1 ½ - 2” allowable chain movement

1 ½ - 2” allowable chain movement

½ - ¾” allowable chain movement ½ - ¾” allowable chain movement

12-7 MOHE59

Adjustments

DRIVE BELT: Adjusting Belt Tension



3. Loosen bolt (D) on the adjustment slide.

4. Adjust the adjustment rod (E) until spring length (B) is 13.5 inches (34 cm).

5. Tighten bolt (D). Replacing Belt

1. Follow steps 1-3 from above.

2. Loosen adjustment rod (E) until the belt is loose.

3. Remove old belt and install new belt.

4. Tighten adjustment rod (E) until spring length (B) is 13.5 inches (34 cm).

5. Tighten bolt (D), and check alignment of sheaves.

6. Make sure belt is in proper grooves, and secure access door before starting machine.

12-8 MOHE59

Adjustments

APRON AND PADDLE DRIVE CHAIN: (RIGHT SIDE) Adjusting Chain Tension




4. Adjust the adjustment rod until the chain is at the desired tension (see “Roller Chain

Tension Specifications” within this section).

5. Tighten the idler sprocket and recheck the chain tension. Replacing Chain

1. Follow steps 1-3 from above. 2. Remove old chain and install new chain.

3. Adjust the adjustment rod until the chain is at the correct tension (see “Roller Chain

Tension Specifications” within this section).

4. Tighten the idler sprocket and recheck the chain tension.

5. Lubricate chain if necessary (see Lubrication and Maintenance section).

6. Close and secure access door before starting machine. NOTE: Use a straight edge across the faces of the sprockets to determine their alignment, if they are not aligned, loosen the sprockets, realign, and tighten sprockets.

A

12-9 MOHE59

Adjustments

REAR SCRUB DRIVE CHAIN: (Gear box and single motor hydraulic drive only) Adjusting Chain Tension



3. Adjust the adjustment rod until the chain is at the correct tension (refer to “Roller Chain

Tension Specifications”).

4. Tighten idler sprocket (A). Replacing Chain

1. Follow steps 1-2 from above.

2. Remove old chain and install new chain.

3. Adjust the adjustment rod until the chain is at the correct tension (refer to “Roller Chain Tension Specifications”).

4. Tighten idler sprocket (A).

5. Lubricate chain if necessary (refer to lubrication chart in Lubrication and Maintenance).


NOTE: Use a straight edge across the faces of the sprockets to determine their alignment. If they are not aligned, loosen sprockets, realign, and tighten sprockets.

12-10 MOHE59

Adjustments

APRON CHAIN: Adjusting Chain Tension

1. Shift to park, disengage PTO, lower machine to ground, relieve hydraulic pressure, stop

engine, remove ignition key, and wait for all moving parts to stop before dismounting.

2. Open the left and right access doors and latch them.

3. Adjustments on the apron chain tension are made first by removing or adding links, and lastly by moving the front idler shaft.

NOTE: Apron chain is a high wear chain, and links may need to be removed frequently.

4. To adjust the shaft, loosen jam nuts holding the adjustment rods on the bearing mounting arms.

5. Use the adjusting rod, and slide the bearing mounting arms apart or together.

6. Always measure the dimension between the shaft centers when making adjustments,

keeping them equal on the left and right sides. NOTE: Distance (A) between top and bottom chain should be kept at 11-12” (27.9 – 30.5 cm) measured from centerline of chains.

7. Tighten jam nuts on the adjusting rods, and be sure the adjusted apron chain does not contact lifter wheels.

Replacing Apron Chain

1. Loosen jam nuts holding the adjustment rods on the bearing mounting arms. 2. Slide the front bearing mounting arms backward to its loosest position.

3. Rotate shafts until splice link is accessible, then disconnect chain on both ends of the link.

4. Remove the apron chain or attach the new chain to the old chain before its removal and

use it to thread the new chain over the sprockets.

A

A

12-11 MOHE59

Adjustments

5. Thread a new chain over the sprockets, bringing the ends together. 6. Hook the ends of the chain together.

7. Repeat steps 3-6 for each apron chain.

8. Use the adjusting rod to slide the lower apron shaft into position to give the required

tension, making sure the apron chain does not contact lifter wheels.

9. Always measure the dimension between the shafts when tensioning. Keep them equal on the left and right hand sides.

10. When correctly positioned, tighten the jam nuts on the bearing mounting arm

adjustment rods.

11. Latch access doors on both sides before starting machine.

12-12 MOHE59

Adjustments

PADDLE SHAFT POSITION: When operating with a steel spacer in the lifter strut, set the clearance between the paddle shaft and the top rim of the lifter wheels (A) to 3” (7.6 cm). When operating in rocky conditions with rubber bumpers installed in the lifter wheel struts, the paddle shafts must be at least 4 ¾” (12 cm) from the edge of the lifter wheel rim (A). To set, follow this procedure:


2. Open the left and right access doors and latch them. 3. Loosen the shaft mounting bolts and the jam nuts on the adjusting bolts. 4. Lower the machine onto stands to take the weight of the machine off the lifter wheels. 5. Measure the distance between the paddle shaft and the rim of the lifter wheels. 6. Turn the adjusting bolt to give the desired clearance between the shaft and rim (A).

This dimension is critical, especially when using rubber bumpers.

A

12-13 MOHE59

Adjustments

NOTE It may be necessary to readjust the apron/paddle shaft chain tension on the right side to provide slack to move the sprocket.

1. Tighten the shaft mounting bolts and the jam nuts on the adjusting bolts. Set the same dimension (A) on both sides and secure mounting fasteners in position. On wide-frame harvesters, set the same dimension (A) on the center mount as on the outer mounts.

2. Place a 4” x 4” (8.9 x 8.9 cm) block of wood under one of the lifter wheels and

lower the entire weight of the machine down on this strut. 3. The rim should clear the shaft by at least ½” (1.27 cm). If the rim is touching the

shaft, raise the paddle shaft until it clears by at least ½” (1.27 cm). 4. If the bumper compression is adjusted, raise the wheel off the block and lower it

again. Check the clearance again.

5. Repeat the procedure with each set of lifter wheels. This will ensure that none of the wheels will contact the paddle shaft.

6. Close and latch access doors before starting machine.

A A

12-14 MOHE59

Adjustments

PINCHPOINT

LOCATION

A

GROUND LEVEL

BACK

FORWARD

PINCH POINT POSITION:

1. To roll pinch point forward or back, first loosen the two nuts on the front of the strut.

2. Add or remove spacers (A) to adjust

pinch point forward or back.

3. When desired position is reached, retighten hex nuts.

PINCH POINT SPACING: Adjusting Pinch Point

1. Remove hex nuts on outside of lifter wheels.

2. Remove lifter wheels if

necessary.

3. Add or remove spacers (A) as necessary.

4. Reinstall lifter wheels if

removed.

5. Retighten hex nuts on outside of lifter wheels.

A

12-15 MOHE59

Adjustments

TORQUE CHART: Torque values listed are for coarse thread bolts, in general use only. Do not use these values if a different torque value or tightening procedure is listed for a specific application. Check tightness of cap screws periodically. Shear bolts are designed to fail under predetermined loads. Always replace shear bolts with identical grade. Fasteners should be replaced with the same or a higher grade. If higher grade fasteners are used, these should only be tightened to the strength of the original. Make sure fastener threads are clean and dry, and thread engagement is properly started. This will prevent them from failing when tightening. Tighten cap screws with plastic insert or crimped steel-type lock nuts to approximately 50% of amounts shown in chart. Tighten toothed or serrated-type lock nuts to full torque value.

Size (A) Grade 5 Grade 8 Standard Metric N*m lb-ft N*m lb-ft

¼” .635 cm 12 9 17 12.5 5/16” .794 cm 25 18 35 26 3/8” .953 cm 44 33 63 46

7/16” 1.11 cm 70 52 100 75 ½” 1.27 cm 110 80 150 115

9/16” 1.43 cm 155 115 225 160 5/8” 1.59 cm 215 160 300 225 ¾” 1.91 cm 375 280 550 400

7/8” 2.22 cm 625 450 875 650 1” 2.54 cm 925 675 1300 975

1 1/8” 2.86 cm 1150 850 1850 1350 1 ¼” 3.18 cm 1650 1200 2600 1950

1 3/8” 3.49 cm 2150 1550 3400 2550 1 ½” 3.81 cm 2850 2100 4550 3350

A

SAE - 5 SAE - 8

12-16 MOHE59

Adjustments

HEAD SHAFT SPROCKET DIMENSIONS: The distance between head shaft sprockets, idler sprockets, or idler rollers is important. The schematics below show a good starting point for sprocket and roller placement.

A

B B

Chain Type Sprocket Dimension (A) 42” (107 cm) Belted Chain 36.5” (92.7 cm) 42” (107 cm) Hook Chain 39.375” (100 cm)

IMPORTANT: Dimension (B) is the distance between the face of the sprocket, and the walls of the elevator. This dimension must be equal on both sides of the shaft. Roller placement for scrubs with hook chain

37-37.5"(100 cm)

43.25"(110 cm)

NOTE: Use shims or washers to achieve dimensions shown.

12-17 MOHE59

Adjustments

SLIP CLUTCHES: All harvesters are equipped with fiber pad slip clutches on the paddle shaft and apron shaft. Some may also have slip clutches on the rear scrub drive. These slip clutches prevent failure of rotating components, in the event they stop rotating. All slip clutches are set at the factory, and no field adjustments should be necessary. IMPORTANT: Do not use any type of oil on slip clutches. Tubes of preset length are housed inside the slip clutch springs. These tubes prevent overtightening of the slip clutch. DO NOT remove the preset tubes and retighten the slip clutch.

12-18 MOHE59

Adjustments

WHEEL FILLERS: Adding or Removing Wheel Fillers

1. Remove lock nut, lock washer, and flat washer from two longest bolts (A). 2. Add or remove wheel fillers. 3. Replace fasteners.

NOTE: If bolts (A) are removed, they must be reassembled in the holes shown below (B); lining up exactly in line with the opposite spokes of the lifter wheels or they will not line up correctly on wheel fillers.

A

B

12-19 MOHE59

Adjustments

ROW FINDER ADJUSTMENTS: The row finder should look as shown when the machine is raised out of the ground. Notice that the wands are angled down, dimension (A). They can be adjusted up or down by moving nuts (D). Adjustment spring (B) can be adjusted to apply more down pressure to ensure that wands remain in constant contact with the beet row when the machine is lowered to digging depth.

EAB

GROUND LEVEL

CG

Adjusting (A)

1. To increase distance (A), adjust nuts (D) along line (F).

2. To decrease distance (A), adjust nuts (D).

Adjusting Height (E)

1. To change height (E) of row finder, loosen bolts (C).

2. Adjust jam nuts (G) to desired height.

3. After adjusting height (E), retighten bolts (C).

NOTE: The wands should be angled down slightly when machine is out of the ground. This will create some down pressure from spring (B) when machine is lowered to digging depth.

F

D

Top View

Right Side View

12-20 MOHE59

Adjustments

SCRAPERS: Adjusting Top Scrapers

1. Adjust bolt (A) to move scrapers out to lifter wheels.

Adjusting Bottom Scrapers

1. Loosen bolts (B). 2. Adjust scrapers to

desired position.

3. Tighten bolts (B). IMPORTANT: Lifter wheels must rotate a full 360° after adjusting scrapers to ensure clearance.

A

B

12-21 MOHE59

Adjustments

REAR SCRUB ROLLERS: The rear scrub rollers at locations (A, B, and C) can be moved to provide more slack in the scrub chain when beet yield is very high. Rollers should be moved when beets back up on the grabroll bed. NOTE: On harvesters equipped with hook rod chain in the rear scrub, more links can be added to substitute moving rollers. Adjusting Rollers

1. Remove roller nut (D). 2. Change roller position.

3. Tighten roller nut (D).

A

BC

D

NOTE: Roller style may vary.

12-22 MOHE59

Adjustments

PADDLE ADJUSTMENT: Paddles can be adjusted closer to and further from the lifter wheels. Paddle wheels are usually adjusted when the pinch point is adjusted wider or narrower. Adjusting Paddles

1. Loosen lock nuts on paddle mounts (A).

2. Move paddles to

desired position.

3. Tighten lock nuts (A).

A

12-23 MOHE59

Adjustments

REVERSE #4 GRABROLL: Grabrolls #2, 4 come set to spin in the same direction as the tractor wheels (opposite grabrolls 1, 3, and 5). In dry conditions, to reduce beet damage, a kit is available to make grabroll #4 spin in the same direction as rolls #1, 3, and 5.

Installing Reverse Grabroll Kit (For 6 row/22 inch harvester)



3. Remove drive belt.

4. Remove sheave (A) from grabroll #4 and attach to harvester frame using stub shaft included

in reverse #4 kit (B).

5. Install idler pulley (E) onto grabroll #4 shaft. Tighten lock rollers.

6. Attach sprockets (C) to shafts on grabrolls #4, 5, using hubs provided

7. Reinstall drive belt to correct tension (see “Drive Belt” within this section).

8. Install drive chain (D) over sprockets on grabrolls #4, 5.

9. Close and secure access door before starting.

C

B

D

A

E#2

#4

12-24 MOHE59

Adjustments

8 row/22 in. harvester On an 8 row/22 in. harvester, the drive sprockets and chain are attached to the right side of the harvester, as shown below. The idler pulley is still attached to the left side of grabroll #4.

Installing Reverse Grabroll Kit (8 row/22 in. machine)

1. Follow steps 1-5 from previous page.

2. Attach sprockets (F) to shafts on

grabrolls #4, 5 on right side of machine, using hubs provided.

3. Install drive chain (G) over

sprockets.

4. Reinstall drive belt to correct tension (see “Drive Belt” within this section).

5. Close and secure all access doors

before starting.

G F

12-25 MOHE59

TROUBLESHOOTING

PROBLEM CAUSE SOLUTION

Lifter wheels not adjusting to row spacing. Lifter wheels slicing beets.

Set lifter strut spacing to same as beet rows.

Row finder wands clogged, or row finder is not adjusted or working properly.

Adjust or clean rowfinder. (see "Row Finder Adjustments" in Adjustments).

Machine is not level. Level machine (see "Leveling Adjustments" in Operating the Harvester).

Irregular planting.

Align harvester with rows using manual override.

Loss of beets in lifter wheels.

Pinch point is too wide. Remove wheel spacers to obtain narrower pinch point (see "Pinch Point Spacing" in Adjustments).

Losing beets between wheel spokes. Install wheel fillers.

Ground speed too slow. For proper speed see "Operating Speed" in Operating the Harvester.

Tractor operating under 1000 RPM PTO speed.

Increase tractor throttle so PTO rotates at 1000 RPM.

Lifter wheels digging too shallow. Lower machine.

Loss of beets through grabrolls.

Rollers too far apart. Move rollers closer together, or tighten rock spring (see "Rock Trip Spring Adjustment" in Adjustments").

Dirt sticking to rollers. Install larger drive sheave to speed up grabrolls (see "Grabroll Speed Adjustment" in Adjustments).

Angle of grabroll bed adjusted incorrectly. Raise front of cleaning bed to increase flow of beets through grabrolls (see "Grabroll Bed Angle" in Adjustments).

13-1 MOHE59

Troubleshooting

PROBLEM CAUSE SOLUTION Excessive debris being loaded into machine.

Poor defoliation job. Run defoliator over field again to eliminate excess debris.

Make sure defoliator is adjusted properly.

Digging too deep. Raise machine to dig shallower.

Unnecessary use of wheel fillers. Remove wheel fillers. Grabrolls backing up with beets.

Bed angle adjusted too far down. Adjust grabroll bed angle (see “Grabroll Bed Angle” in Adjustments).

Grabrolls moving too slow. Speed up grabrolls by installing a larger drive sheave (see “Grabroll Speed Adjustment” in Adjustments).

Beets not coming out of lifter wheels.

Paddle shaft not adjusted properly. Lower paddle shaft (see "Paddle Shaft Position" in Adjustments").

Rubber paddles worn severely.

Replace rubber paddles.

Beets aren't being lifted to paddles. Increase ground speed (see "Operating Speed" in Operating the Harvester).

Digging too deep. Raise machine to prevent excessive amounts of material from being loaded.

Grabrolls clogging with beets before scrub is full.

Rear scrub chain too tight.

Adjust tension by moving rear scrub rollers (see “Rear scrub rollers” in Adjustments).

13-2 MOHE59

Troubleshooting

PROBLEM CAUSE SOLUTION Lifter wheels plugging. Digging too deep. Raise machine.

Paddles not keeping wheel rim clean. Adjust paddles outward and/or down (see "Paddle Shaft Position" in Adjustments).

Scrapers not close enough to wheel. Adjust scrapers with adjusting bolts (see "Lifter Wheel Scrapers" in Adjustments).

Rocks clutching or stopping lifter wheel rotation.

Change position of pinch point (see "Pinch Point Position" in Adjustments").

Excessive mud Clean machine.

Beets coming out front of machine.

Paddles too wide. Adjust inward (see "Paddle Shaft Position" in Adjustments).

Paddles not reaching deep enough into lifter wheels.

Lower paddle shaft (see "Paddle Shaft Position" in Adjustments).

Apron chain tension too loose. Adjust chain tension (see “Apron

Chain” in Adjustments). Excessive soil being loaded into machine.

Digging too deep. Raise machine.

Ground speed too fast. Reduce ground speed.

Incorrect pinch point position. Roll pinch point forward (see "Pinch Point Position" in Adjustments).

Wheel fillers are installed. Remove wheel fillers (see "Wheel Fillers" in Adjustments).

Pinch point is too wide. Remove lifter wheel spacers (see "Pinch Point Spacing" in Adjustments).

Soil build-up on grabrolls.

Loading excessive soil. Refer to problem listed above.

Grabrolls moving too slow. Speed up cleaning rolls with larger drive sheave (see “Grabroll Speed Adjustment” in Adjustments).

Soil conditions (clay, mud, temperature). Clean more frequently.

13-3 MOHE59

Troubleshooting

PROBLEM CAUSE SOLUTION Tires built up with soil. Soil conditions. Clean rear struts frequently

(refer to Cleaning section).

Lower tire pressure. (see Specifications).

Scrapers building up with mud.

Scrapers too far from lifter wheels. Adjust outward to wheels (see "Lifter Wheel Scrapers" in Adjustments).

Soil conditions. Move paddles out close to lifter wheels (see "Adjusting Paddles" in Adjustments section).

Mud building up on lifter wheels.

Paddles not close enough to lifter wheels. Move paddles out closer to lifter wheels (see "Adjusting Paddles" in Adjustments section).

Digging too deep. Raise machine.

Soil conditions. Clean lifter struts frequently (refer to Cleaning section).

Breaking beets. Digging too shallow. Lower machine.

Small beets or dry conditions. Install reverse #4 grabroll kit.

Grabrolls moving too fast Install smaller drive sheave (see “Grabroll speed adjustment” in Adjustments).

Pinch point too narrow. Add wheel spacers (see "Pinch Point Spacing" in Adjustments").

Tractor tires running over beets. Adjust tractor tires properly (see "Tire Spacing and Inflation" in Preparing the Tractor).

Grabrolls opened too far. Close up grabrolls (see "Roll Spacing and Adjustment" in Adjustments).

Machine "frozen up." Soil freezing overnight. Run machine empty, and clean

before storing each night (Refer to Cleaning section).

Foreign material jamming machine. Remove obstruction. Check between grabrolls and sprockets on scrub chain.

13-4 MOHE59

SPECIFICATIONS

SPECIFICATIONS: MECHANICAL/HARVESTER

4 Row 30”/6 Row 22” 6 Row 30”/8 Row 22” Weight(Approx.) 19,000 lbs. 22,500 lbs. Length 20’6” 20’6” Width (Elevator Extended) 20’2” 23’10” Height (Elevator Extended) 14’ 14’ Tank Capacity 2 ton 2.5 ton Recommended Tractor HP 170 HP 200 HP Recommended Working Speed 3-5 mph 3-5 mph Tractor Hydraulic Requirements 2700 PSI 30 GPM 2700 PSI 30 GPM Transport Width 16’4” 19’8” Transport Height 13’10” 13’10”

Tire Size: 11.2x24, 10 ply Pressure: 35 psi maximum-20 psi minimum Input: 1000 RPM

RECORD SERIAL NUMBER: When ordering parts, always furnish model and serial number as given on serial number plate. It will assist your Amity dealer in giving you prompt and efficient service. The harvester serial number is located on the front of the left shield, as shown. Record serial number in the space provided. SERIAL NUMBER:

Serial Number Location

14-1 MOHE59

APPENDICES

CONVERSIONS: Some useful conversions are listed in the table below:

Metric Standard 1 kg 2.204 lb. .746 kw 1 hp 1 hectare 2.471 acres 1 km .6213 miles 1 L .264 gal=1.056 qt.=61 in.3 (Celsius •1.8)+32 Fahrenheit Celsius (Farenheit-32)/1.8 6.895 kpa 1 psi 1.356 N•m 1 ft-lb

HYDRAULIC FLOW RATES: Each hydraulic circuit for the harvester has a designated flow rate; approximate values are listed in the table below:

Circuit Metric Standard

Beet Tank 37.9 l/m 10 gpm

Row Finder 30.3 l/m 8 gpm

Lift 18.9 l/m 5 gpm

Self contained row finder/ lift circuit 37.9 l/m 10 gpm

NOTE: Values listed are a good starting point; however, flow rates should be fine tuned to allow for the smallest flow rate possible, while still providing enough power to run harvester properly.

15-1 MOHE59

Appendices

TRANTORQUE INSTALLATION PROCEDURES: Shaft and bore diameters along with surface finish are extremely critical for the proper installation of a Trantorque bushing. These specifications are held at the factory during manufacturing. If it is necessary to disassemble and reassemble a Trantorque application that i s undamaged and intact the following procedures will insure a positive installation. If it is necessary to replace a unit in which the Trantorque or shaft may have come loose, rotated or be en damaged, a thorough inspection of t he components is necessary to insure the failure will not reoccur. CAUTION: Use no lubricants in this installation. The use of any lubricant on the contact surfaces may result in bushing failure and will void all warranties 1. Both shaft and component bore must be completely free of paint, grease, oil, dirt and burrs. Clean the surfaces with a non-petroleum based solvent, such as isopropyl alcohol. 2. Insert the Trantorque into the bore making sure the mating hub is flush against the shoulder at the hex flats. 3. Insert the shaft fully and hand-tighten the nut until the assembly becomes snug on the shaft. IMPORTANT: The shaft must fully engage the shaft gripping area of the Trantorque. 4. Using a torque wrench, tighten the nut to the proper torque as listed below. IMPORTANT: A torque wrench must be used! A impact wrench will not yield the proper torque and the installation will fail. Minimal under-tightening will allow the Trantorque or shaft to spin i n the bore. Over-tightening will damage or crack the Trantorque. Do not use an impact wrench in the installation.

Part # Description Torque 58459, 64163 Hub-Trantorque 1.75” 270 ft-lb, 366 N-m 58460, 64165 Hub-Trantorque 2.00” 470 ft-lb, 637 N-m 59259 Hub-Trantorque 2.25” 510 ft-lb, 691 N-m

15-2 MOHE59

Appendices

SCRUB DRIVELINE ASSEMBLY: When assembling the rear scrub driveline, it is important to line up U-joint yokes. When assembled, driveline should have the same orientation as the drawing shown.

NOT CORRECTCORRECT

ROTATION

MUSTALIGN

15-3 MOHE59

Appendices

PLATE, RIVET - 54184

1/4-20 x 1.00 HEX FLANGED LOCKING SCREW- 63671

DRILL & TAP 1/4-20

WARNING : ENSURE THAT SCREWS ARE SUFFICIENTLY TIGHT TO PRODUCE A BULGE AT THE EDGE OF THE BELT OF BETWEEN 1 AND 2mm (SEE DIAGRAM).FAILURE TO DO SO MAY CAUSE PREMATURE FAILUREAND VOID YOUR WARRANTY

CUT BELT 10mm BEYOND EDGE OF GROOVE

CUT BELT 10mm BEYOND EDGE OF GROOVE

BELTED CHAIN LAP JOINT CONNECTION

.50 Ø RODSDRILL & TAP .250-20STRAIG HT - #59168UP - #64757DOWN - #59169

1mm - 2mm

15-4 MOHE59

Appendices

TOOLS: Amity has the following tools available: Trantorque sockets (#59107, 59108, 64820)) Trantorque wrench (#64320) Belted chain link removal tool (#62802)

#59107 (1 ¾”, 4.45 cm) #59108 (2”, 5.08 cm) #64820 (2 ¼”, 5.7 cm)

#64320

#62802

15-5 MOHE59

Appendices

The MST bushings are easy to install and remove. They are split through the barrel and have a taper to provide a true clamp on the shaft. They are keyed to both the hub and the shaft to help during “blind” installations.

Installation:

1. Be sure the tapered cone surfaces of the bushing and the inside of the driven product are clean and free of anti-seize lubricants.

2. Place bushing in sprocket or other Martin

MST part.

3. Place cap screws loosely in “pull up” holes. Bushing remains loose to ensure sliding fit on shaft.

4. With key on shaft, slide sprocket to desired

position on shaft, be sure heads of cap screws are accessible.

5. Align sprocket, tighten screws alternately and

progressively until they are pulled up tight (see table below). Do not use extensions on wrench handles, do not allow sprocket to be drawn in contact with flange of bushing. There should be a gap between bushing flange and sprocket

CAUTION: This gap must not be closed.

WRENCH TORQUE VALUES FOR TIGHTENING BUSHINGS

MST bushing size

Size of cap screw

Wrench torque in.lbs REMOVAL

H 1/4 X 3/4 95 1. Loosen and remove capscrews. P 5/16 X 1 192 2. Insert capscrews in tapped removal holes. Q 3/8 X 1 1/4 348 3. Tighten insterted screws until sprocket is loose on shaft. R 3/8 X 1 3/4 348 4. Remove sprocket from shaft. S 1/2 X 2 1/4 840 U 5/8 X 2 3/4 1680

W 3/4 X 3 3000

WARNING: USE OF ANTI-SEIZE LUBRICANT ON TAPERED CONE SURFACES OR ON BOLT THREADS WHEN MOUNTING MAY RESULT IN DAMAGE TO SHEAVES AND SPROCKETS. THIS VOIDS ALL MANUFACTURERE'S WARRANTIES.

WARNING: Because of the possible danger to person(s) or property from accidents which may result from the improper use of products, it is important that correct procedures be followed: Products must be used in accordance with the engineering information specified in the catalog. Proper installation, maintenance and operation procedures most be observed. The instructions given above must be followed. Inspections should be made as necessary to assure safe operation under prevailing conditions. All rotating power transmission products when used in a drive are potentially dangerous and must be guarded by the user as required by applicable laws, regulations, standards, and good safety practice. (Refer to ANSI Standard B15.1.)

15-6 MOHE59

Appendices

HOW TO MEASURE TORQUE WRENCH EFFECTIVE LENGTH: To recalculate a torque reading when using a torque adapter, use the following formula, and refer to the drawing below: TW=TA x L L + A TW is the torque setting or dial reading on the wrench TA is the torque specification (The actual amount of torque that should be applied to the fastener) A is the amount that the adapter increases (or reduces) the effective lever length as measured along the centerline of the torque wrench L is the lever length of the wrench as measured from the center of the drive to the center of the grip. The effective length of the torque wrench measured along the centerline of the torque wrench is the sum of L and A

L

L

LA

LA

NO CALCULATION NEEDED

L = EFFECTIVE LENGTH (E)

L+A = EFFECTIVE LENGTH (E)

15-7 MOHE59

Appendices

Removal and Assembly of an EASY LOCK guard

REMOVAL Remove the EASY LOCK® tab with a screwdriver (Fig. A). If the guard is chained, remove or hold back the chain to prevent it from blocking the bearing. Turn the bearing in the direction as indicated then slide guard off the bearing (Fig. B).

Fig. A Fig. B

ASSEMBLY Align the bearing tabs with the guard bell slots. Slide the bell onto the bearing. Turn the bearing to lock it in place. Snap the EASY LOCK tab into the bell.

15-8 MOHE59

MOHE59

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